All names: Gaia DR2 6439287618985307776, TIC 387107334, BPSCS22959-140, Gaia EDR3 6439287618985307776, BPS CS 22959-0140, UCAC4 135-170444, Gaia DR3 6439287618985307776, 2MASS J18552490-6305056
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 55 24.90 (0.02) | 18 55 24.89 | 18 55 24.91 (0.02) | ||
| Declination | -63 05 05.82 (0.02) | -63 05 05.57 | -63 05 05.78 (0.02) | ||
| Spectral type | sdO | sdO | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.89 (0.04) | 0.91 (0.04) | 0.89 (0.04) | |
| Distance | [pc] | 1128.92 (45) | 1094.33 (52) | 1128.92 (45) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -3.416 (0.03) | -3.427 (0.05) | -3.416 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.969 (0.03) | -3.1 (0.05) | -2.969 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.62 (0.02) | ||||
| V magnitude | 14.76 (0.01) | ||||
| R magnitude | 15.06 (0.04) | ||||
| I magnitude | |||||
| J magnitude | 15.27 (0.05) | 15.27 (0.05) | |||
| H magnitude | 15.40 (0.1) | 15.40 (0.1) | |||
| K magnitude | 15.23 (0.1) | 15.23 (0.1) | |||
| u magnitude | |||||
| g magnitude | 14.62 (0.01) | ||||
| r magnitude | 14.97 (0.01) | ||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.75 (0.003) | 14.76 (0.001) | 14.75 (0.003) | ||
| BP magnitude | 14.62 (0.004) | 14.57 (0.008) | |||
| RP magnitude | 14.99 (0.005) | 14.99 (0.003) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.060 | ||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.